Unscramble Rxfs

What is the meaning of word rxfs unscrambled?

What 4 letter words can be made from letters R X F S:

Make more words by adding or removing letters

How many 3 letter words can you make from letters R X F S?

1. FRS - Definition of FRS

Which 3 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling xfs
2) Removing the letter X and unscrambling rfs
3) Removing the letter F and unscrambling rxs
4) Removing the letter S and unscrambling rxf

More anagrams containing the letters R X F S
rxsf sfrx frsx rsxf